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How do you write the weight 642000 to indicate that there are four significant figures?
Wiki User
∙ 8y ago
642000 expressed as four significant figures is 6.420e5
Wiki User
∙ 8y ago
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What is 0.31 in a diamond?
The term .031 may indicate the carat weight of the stone. Without a context it is uncertain, however.
How much for 1999 gold coin?
More information is needed. What country issued the coin? Does it indicate a weight or denomination? Please post a new question with that information to help ID your coin. Thanks!
How could you weigh an airplane without using a scale?
Fly the plane onto a huge ship or an aircraft carrier. Paint a mark on the side of the ship to indicate the water level. Then fly the plane off of the ship, and replace it will increasing amounts of known weight. Continue to add weight until the ship sinks to the same water level that you marked on the side. Then you will know the weight of the plane.
What is the formula to calculate rebar weight?
You have to find a chart that will indicate the weight per unit of measure for the appropriate rebar size. Than take that and multiply it by the the length of the rebar. For example, a #4 rebar weighs 0.668 lbs/ft. If you have 5 @ 20-00 pieces that is 0.668 X 20 X 5 = 67 lbs. Charts are available throughout the web or at CRSI.org.
How many significaNT FIgures are used to express your final result of molecular weight?
to determine sig figs you eed to know how many sig figs are in the calclation. in adding and subtracting you answers are to the sig fig with the lowest dec point place. and in multiplication and dividing sig figs of answers determined by the number with the least sig figs in the calculation ex. 5.2 ( 2 sf) + 5.324 (4 sf) = 10.5 ( because 5.2 has the largest decimal place) 5.2 X 5.324 = 28 ( because 5.3 only has 2 sf so the answer ca only have 2sf)
You can lift a 20 Kilogram weight over your head ten times before you get tired Write the measurement to the correct number of significant figures?
It's 10, correct to two significant figures.
Examples of significant figures?
significant figures are digits of certainty. In other words they are exact numbers. Except zeros are placeholders (not exact) unless if they are in between non zeros. Also zeros at the end of numbers are significant figures if there is a decimal point.
What are significant figures-?
When a number is written in scientific notation, the digits that do not appear are not significant. The rest are significant figures. For example, when you convert 0.0003102 to scientific notation, it is 3.102 X 10-4. Therefore the zeros before the 3 are not significant.The 3 significant figures implies to all digits around it, regardless of before and after the decimal point. 8.00 has 3 sig.figs. This is because of the 2 zeroes after the decimal point. When you have 30 zeroes after the decimal point, such as 3.000000000000000000000000000000, you have 31 significant figures. 1.23 has 3 sig.figs. This applies to all questions, if needed.The amount of figures given in an answer where you begin with approximates of numbers. The answers should not be more precise than the original measurements. This would lead to a misleading answer, and thus significant figures were created to show an accurate approximation of your answer.The idea of significant figures (sig figs or sf), also called significant digits (sig digs) is a method of expressing error in measurement.The most significant digit is the "first" digit of a number (the left-most non-zero digit). Similarly, the least significant digit is the "last" digit of a number (sometimes, but not always, the right-most digit). A number is called more significant because it carries more weight. In the decimal number system (base 10), the weight of each digit to the left increases by a multiple of 10, and conversely the weight of each digit to the right decreases by a multiple of 10. A similar thing happens in the binary (base 2) number system - see most significant bit.Sometimes the term "significant figures" is used to describe some rules-of-thumb, known as significance arithmetic, which attempt to indicate the propagation of errors in a scientific experiment or in statistics when perfect accuracy is not attainable or not required. Scientific notation is often used when expressing the significant figures in a number.The concept of significant figures originated from measuring a value and then estimating one degree below the limit of the reading; for example, if an object, measured with a ruler marked in millimeters, is known to be between six and seven millimeters and can be seen to be approximately 2/3 of the way between them, an acceptable measurement for it could be 6.6 mm or 6.7 mm, but not 6.666666... mm as a recurring decimal. This rule is based upon the principle of not implying more precision than can be justified when measurements are taken in this manner. Teachers of engineering courses have been known to deduct points when scoring papers if excessive significant figures are given in a final answer.Each of the digits of a number that are used to express it to the required degree of accuracy, starting from the first nonzero digit.Significant figures (also called significant digits) can also refer to a crude form of error representation based around significant figure rounding.Significant figures are digits that show the number of units in a measurement expressed in decimal notation.
If the mass of 293 Nv is 293.05 and that of 295 Nv is 295.20 what is the atomic weight of Nv?
293.05+295.2=588.25 588.25/2= an amu of 294.13 using significant figures
What is the length width and weight of a us dollar bill?
To three significant figures, the dimensions of all current US bills are 156 mm long × 66.3 mm wide × 0.11 mm thick with a weight of 1 gram.
What is the mass of 6.0 moles of sodium nitrate (NaNO3)?
1 mole of Na2SO4 is 142.05 or 142.1 when using 4 significant figures
Can a square or rectangle support more weight?
They are both plane figures meaning they are two dimensional. The idea of supporting weight does not work for 2 dimensional figures.
Does lightest means lowest?
Not necessarily. However, when referring to weight, lightest would indicate the lowest weight.
How many GRAMS of magnesium fluoride are present in 4.78 moles of this compound?
The formula unit for magnesium fluoride is MgF2. From the periodic table, add the atomic weight of 1 magnesium atom and 2 fluorine atoms to get to get 62.3018. This means that 1 mole of MgF2 is 62.3018g of MgF2. Now, to find out the mass of 4.78 mol MgF2 X the g/mol so that you will cancel the moles, and keep the grams. 4.78 mol MgF2 X 62.3018g MgF2/1mol MgF2 = 297g MgF2 *The answer 297 is in keeping with significant figures. When you multiply or divide, the answer can have no more than the fewest significant figures in the calculation, which was 4.78, and which has only three significant figures.
What is the force of an object with a mass of 317 kg and an unknown acceleration?
By force do you mean normal force? If so that is simply the weight times gravity. 317kg * 9.806m/s^2= 3108.502 N(Newtons) If significant figures are taken into account 3110N
Does Constipation cause weight gain?
yes, but not a significant amount.
What is the gross weight means which is stipulated on BL Is that cargo weight only or cargo weight tare weight of the container If you indicate cargo weight only on BL am you wrong Why?
Gross weight: The total weight, cargo and container. Net weight: The weight of the cargo. Tare weight: The weight of the container.
